Title :
Wearable Autonomous Wireless Electro-encephalography System Fully Powered by Human Body Heat
Author :
Torfs, Tom ; Leonov, Vladimir ; Yazicioglu, Refet Firat ; Merken, Patrick ; Van Hoof, Chris ; Vullers, Ruud J M ; Gyselinckx, Bert
Author_Institution :
Integrated Syst. Dept., IMEC, Leuven
Abstract :
A wearable, wireless 2-channel electro-encephalography (EEG) system has been realized which functions fully autonomously, without any batteries. It is fully powered by human body heat using a thermo-electric generator which can produce over 2 mW at 23degC. It uses two of IMECpsilas ultra-low power biopotential electronics chips to record high-quality EEG signals. The whole system consumes only 0.8 mW, while sampling and transmitting 2 channels of 12-bit EEG data continuously at 256 Hz. Previous work has shown body-heat powered sensors such as a wireless temperature sensor or pulse oximeter with a low transmission duty cycle, but never before a continuously acquiring and transmitting system with complete power autonomy has been demonstrated.
Keywords :
biothermics; electroencephalography; temperature sensors; wearable computers; wireless sensor networks; autonomous electroencephalography; batteries; biopotential electronics chips; human body heat; pulse oximeter; thermoelectric generator; wearable electroencephalography; wireless electroencephalography; wireless temperature sensor; Biomedical monitoring; Electrodes; Electroencephalography; Humans; Hybrid power systems; Photovoltaic cells; Power generation; Solar power generation; Temperature; Thermoelectricity;
Conference_Titel :
Sensors, 2008 IEEE
Conference_Location :
Lecce
Print_ISBN :
978-1-4244-2580-8
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2008.4716675
